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Individual Calculations April 2009 |
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| Machado Ramirez, Allan Total change: 22.95 | |   |
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| I Internacional Cartago Las Brumas | Cartago | CRC | 2009-01-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2275 | 1996 | 0.50 | 3 | -0.03 | 25 | -0.75 | |
|  Murillo, Alexis | m | | 2322 | CRC | 0.00 | 1 | -0.13 | 25 | -3.25 | |  Valdes, Leonardo | m | | 2346 | CRC | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Trejos, Enrique | | | 2157 | CRC | 0.50 | 1 | 0.21 | 25 | 5.25 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | | NOTE: K factor changed | | Costa Rican National Championship Phase 1.1 | San Jose | CRC | 2009-01-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2086 | 1996 | 5.00 | 9 | 1.58 | 15 | 23.70 | |
| | Campos Cerdas, Jorge | | | 2056 | CRC | 0.50 | 1 | 0.08 | 15 | 1.20 | | | Munoz, Carolina | | wm | 2026 | CRC | 1.00 | 1 | 0.54 | 15 | 8.10 | | | Gomez Huertas, Stanley | | | 1991 | CRC | 0.50 | 1 | -0.01 | 15 | -0.15 | | | Needham, Bryan | | | 2005 | CRC | 1.00 | 1 | 0.51 | 15 | 7.65 | | | Castro Madrigal, Randall | | | 2135 | CRC | 1.00 | 1 | 0.69 | 15 | 10.35 | | | Cabrera, Marco Antonio | | | 2109 | CRC | 0.00 | 1 | -0.35 | 15 | -5.25 | | | Granados, Carlos | | | 2150 | CRC | 1.00 | 1 | 0.71 | 15 | 10.65 | | | Carvajal Gorgona, Jonathan | | | 2175 | CRC | 0.00 | 1 | -0.27 | 15 | -4.05 | | | Solis, Efren | | | 2128 | CRC | 0.00 | 1 | -0.32 | 15 | -4.80 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | |
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